Harry v



(No Model.) H V MOQRE MOLD FOR HOLLOW ARTICLES.

No. 585,689. Patented July 6, 1897.

T m H e V w Witnesses 22, Attorney m: scams PETERS co nnomumu, wAsv-lmnron, n c.

, UNITED STATES PATENT it OFFICE.

HARRY V. MOORE, OF HAMILTON, O HIO, ASSIGNOR TO F. & L. KAHN &

BROS, OF SAME PLACE.

MOLD FOR HOLLOW ARTICLES.

SPECIFICATION forming part of Letters Fatent No. 585,689, dated .Tuly 6, 1897.

Application filed March 1 2, 1 8 9 7.

To aZZ whom it may concern.-

Be it known that I, HARRY V. MOORE, of Hamilton, Butler county, Ohio,have invented certain new and useful Improvements in Molds for Hollow Articles, of which the following is a specification.

This invention pertains to improvements in molds for use in casting hollow articles having a large opening in a plane parallel with the plane of a permissible parting in the pattern.

My improvedmethod will be readily understood from the following description, taken in connection with the accompanying drawings, in which my invention is exemplified in connection with a pot-like vessel.

Figure 1 is a side elevation of the exemplifying pattern, and Figs. 2, 3, 4, 5, and 6 Vertical sections of the mold in successive stages of formation.

In Fig. 1 is seen the pattern of the exemplifying hollow article, the pattern being formed in two parts 1 and 2 with a horizontal parting between them, there being a large opening in the upper half-pattern 1 parallel with the plane of the parting between the two half-patterns.

Fig. 2 explains the first step in forming the mold. The upper half-pattern 1 is set on a bottom board 4, on which is placed the drag 3. Over the top opening in the half-pattern is set a collar 5, which rests upon the pattern. This collar is to form part of the mold, and the sand of the drag may be employed as the sole means for holding the collar in place. The half-flask, half-pattern, and collar having been placed as indicated, the dragsand 6 is rammed in the half-flask around the half-pattern and the collar. The drag is then to be reversed, as seen in Fig. 3, after which the other half-pattern 2 is to be set in place and then the cope 7 applied and its sand 8 rammed, leaving the parts as seen in Fig. 3. The entire mold is then to be reversed, as seen in Fig. 4., and the green core=sand 9 is to be rammed into the interior of the pattern and Serial No. 627,098. (No model.)

collar. The drag 3 is then to be lifted, c01 lar 5 coming with it and leaving the core and pattern. Pattern-half 1 is then to be drawn and the drag replaced, leaving the mold in the condition seen in Fig. 5. The entire mold, in the condition shown in Fig. 5, is then to be reversed and cope 7 lifted and pattern-half 2 drawn and the cope replaced, leaving the mold in the condition seen in Fig. 6 complete and ready for pouring.

In many cases the apparatus, Without modification, may be used after a somewhat different method or, rather, a different order of arrangement of the steps of the method. Thus the part 2 of the pattern may be placed mouth down on a follow board and the cope 7 rammed, after which the half-mold thus completed is to be reversed. The joint-face is then to be treated with parting-sand, after which the part 1 of the pattern is placed in position, surmounted by the collar 5, and the drag 3 applied, after which the sand of the drag is to be rammed, and at the same time the sand of the core maybe rammed through the collar. This leaves the parts precisely as seen in Fig. 4 and ready for the subsequent, steps, as previously described. By the modification of the method described it is to be observed that one reversal of the mold is avoided, which may be quite an object in molding heavy articles.

I claim as my invention-- The combination, substantially as set forth,

of a hollow pattern parted horizontally and having an opening in a plane substantially parallel with said parting, two half -molds parted in the plane of said pattern-parting,

and a collar supported in one of said halfmolds and extending from the outer face of such half-mold inwardly to engaging contact with the margin of the opening in said pat tern.

HARRY V. MOORE.

Witnesses:

J. W. SEE, SAM l). FITT N, J r. 

